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Reddit // online content platform
Engineering, Full Time    Seattle    Posted: Tuesday, August 31, 2021
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The front page of the internet," Reddit brings over 430 million people together each month through their common interests, inviting them to share, vote, comment, & create across thousands of communities. 

The Core Machine Learning team at Reddit is a 10x team that owns recommendations, content discovery, user & content quantification, while directly impacting other teams such as Growth & Ads. 

How You'll Have Impact:

As the 6th largest site on the internet, Reddit generates billions of events & terabytes of data in a day. You will own projects from ideation to production instead of being stuck making small incremental gains on enterprise systems. We are looking for the best & the brightest Machine Learning Engineers/Scientists to join us in solving hard problems in order to create things that millions of users will love. We are a team of builders that value impact, personal growth, openness & kindness.

What Youll Do

You will be in the unique position to revolutionize personalized video content discovery using Machine Learning techniques including Deep Learning, Natural Language Processing, Recommendation Systems, Representation Learning & Computer Vision.


  • Apply Machine Learning / Artificial Intelligence to personalization, discovery & recommendation problems in the video-ranking space
  • Build Machine Learning models from Petabytes of data using the Google Cloud Platform.
  • Design Machine Learning solutions for Reddits unique product challenges.
  • Extract intelligence from data by applying analysis & feature-engineering techniques.
  • Iterate on Machine Learning products based on the feedback from A/B experiments & product managers.
  • Deploy your model to serve millions of users.
  • Participate in the full software development cycle: design, develop, QA, deploy, experiment, & analyze.


  • 5+ years of work experience as a Machine Learning Scientist or Engineer; or 4+ years of work experience plus a degree in Machine Learning, Data Science or Statistics.
  • Solid theoretical knowledge of Machine Learning & Statistical concepts, including Deep Learning, common Neural Network architectures as well as performance tradeoffs.
  • Familiarity with at least 2 of: Tensorflow, Keras, PyTorch & Sklearn
  • Comfortable with distributed learning, big data (Petabyte scale) & data-intensive systems
  • Experience working with Computer Vision Modeling Techniques 
  • The ability to extract insight from data
  • Proficient in Python & SQL
  • Passionate about building delightful products for users
  • Strong communication & team-work skills


  • Work experience in Recommendation Systems & Feeds-ranking a very strong plus
  • Knowledge of Natural Language Processing, Reinforcement Learning or Self Learning
  • The ability to understand & implement publications in the fields of Artificial Intelligence/Machine Learning
  • Exposure to data-intensive systems as well as writing production-quality software
  • Familiarity with Google Cloud pipelines, Go & Scala

Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities & disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, please contact us at

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